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compareBoundaryPoints(how, sourceRange )
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Parameters
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CompareHowhow
A code representing the type of comparison, as defined above.
RangesourceRange
The Range on which this current Range is compared to.
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Returns
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short. -1, 0 or 1 depending on whether the corresponding boundary-point of the Range is respectively before, equal to, or after the corresponding boundary-point of sourceRange.
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Throws
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DOMException
WRONG_DOCUMENT_ERR: Raised if the two Ranges are not in the same Document or DocumentFragment.
INVALID_STATE_ERR: Raised if detach() has already been invoked on this object.
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